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[jira] [Commented] (HBASE-5339) Add support for compound keys to importtsv

Date

Mon, 06 Feb 2012 13:03:59 GMT

[ https://issues.apache.org/jira/browse/HBASE-5339?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13201255#comment-13201255
]
Lars George commented on HBASE-5339:
------------------------------------
Obviously, you can rearrange the compound key parts by using different HBASE_ROW_KEY_N, where
N is user knowledge.
{code}
-Dimporttsv.columns=HBASE_ROW_KEY_1,HBASE_ROW_KEY_3,cf1:col1,cf2:col3,HBASE_ROW_KEY_2
{code}
> Add support for compound keys to importtsv
> ------------------------------------------
>
> Key: HBASE-5339
> URL: https://issues.apache.org/jira/browse/HBASE-5339
> Project: HBase
> Issue Type: Improvement
> Components: mapreduce
> Reporter: Lars George
> Priority: Trivial
>
> Add support that you can combine some columns from the TSV with either a given separator,
no separator, or with a custom row key generator class. Syntax could be:
> {code}
> -Dimporttsv.columns=HBASE_ROW_KEY_1,HBASE_ROW_KEY_2,cf1:col1,cf2:col3,HBASE_ROW_KEY_3
> -Dimporttsv.rowkey.separator="-"
> {code}
> Another option of course is using the custom mapper class and handle this there, but
this also seems like a nice to have option, probably often covering the 80% this sort of thing
is needed.
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